Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival in Metapan brings an average high-temperature of a still warm 28.4°C (83.1°F), slightly deviating from November's 28°C (82.4°F). An average nighttime temperature of 16.6°C (61.9°F) is recorded in Metapan during December.Heat index
The heat index for December is calculated to be a tropical 32°C (89.6°F). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.In reference to the heat index, it's for places in shade and with a slight wind. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Humidity
In December, the average relative humidity in Metapan is 74%.Rainfall
In Metapan, in December, during 2.3 rainfall days, 5mm (0.2") of precipitation is typically accumulated. Throughout the year, there are 181.4 rainfall days, and 1055mm (41.54") of precipitation is accumulated.Daylight
With an average of 11h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 06:06 and sunset at 17:27. On the last day of December, sunrise is at 06:22 and sunset at 17:40 CST.
Sunshine
In December, the average sunshine is 7.6h.UV index
The months with the highest UV index in Metapan are January through August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during December translates into these guidelines:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Metapan in December?
What is the average humidity in December in Metapan?
How much does it rain in Metapan in December?
What is the month with the shortest days in Metapan?
How many hours of daylight does Metapan have in December?
When is the sunrise / sunset in December in Metapan?
How long on average sun shines in December in Metapan?
When is the highest UV index in Metapan?
What is the UV index intensity in December in Metapan?
Average temperature in December
Metapan, El Salvador
- Average high temperature in December: 28.4°C
The warmest month (with the highest average high temperature) is April (33.2°C).
The month with the lowest average high temperature is October (27.9°C).
- Average low temperature in December: 16.6°C
The month with the highest average low temperature is May (20.7°C).
The coldest month (with the lowest average low temperature) is January (16.3°C).
Average pressure in December
Metapan, El Salvador
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is January (1014.2mbar).
The months with the lowest atmospheric pressure are May and October (1011.7mbar).
Average wind speed in December
Metapan, El Salvador
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is January (9km/h).
The calmest month (with the lowest average wind speed) is September (4.2km/h).
Average humidity in December
Metapan, El Salvador
- Average humidity in December: 74%
The month with the highest relative humidity is October (86%).
The month with the lowest relative humidity is March (63%).
Average rainfall in December
Metapan, El Salvador
- Average rainfall in December: 5mm
The wettest month (with the highest rainfall) is May (198mm).
The driest month (with the least rainfall) is January (2mm).
Average rainfall days in December
Metapan, El Salvador
- Average rainfall days in December: 2.3 days
The month with the highest number of rainy days is June (25 days).
The month with the least rainy days is January (1.9 days).
Average daylight in December /
Average sunshine in December
Metapan, El Salvador
- Average daylight in December: 11h and 2min
The month with the longest days is June (Average daylight: 13h and 0min).
The month with the shortest days is December (Average daylight: 11h and 18min).
- Average sunshine in December: 7h and 4min
The month with the most sunshine is April (Average sunshine: 11h and 18min).
The month with the least sunshine is October (Average sunshine: 7h and 12min).
Average sunshine days in December
Metapan, El Salvador
- Average sunshine days in December: 28.5 days
The months with the most sunshine days are January and December (28.5 days).
The month with the least sunshine days is September (3.7 days).
Average UV index in December
Metapan, El Salvador
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
The month with the lowest UV index is September (UV index 5).
Average cloud cover in December
Metapan, El Salvador
- Average cloud cover in December: 20
The month with the most cloud cover is September (Cloud cover 57).
The month with the least cloud cover is January (Cloud cover 17).
Average visibility in December
Metapan, El Salvador
- Average visibility in December: 9km
The months with the highest visibility are February, March and April (10km).
The month with the lowest visibility is September (6km).
Metapan, El Salvador
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